diff options
| author | Peter Oskolkov <posk@google.com> | 2019-02-25 17:43:46 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-26 08:27:05 -0800 |
| commit | d8cf757fbd3ee96a449f656707e773c91ca805b8 (patch) | |
| tree | fc1c6d8fe69e873f55d823a5b073526b87a6e0d4 /net/ipv4 | |
| parent | c14f7e1efcbf744c49fcb44a121112c54d2c5330 (diff) | |
| download | linux-d8cf757fbd3ee96a449f656707e773c91ca805b8.tar.bz2 | |
net: remove unused struct inet_frag_queue.fragments field
Now that all users of struct inet_frag_queue have been converted
to use 'rb_fragments', remove the unused 'fragments' field.
Build with `make allyesconfig` succeeded. ip_defrag selftest passed.
Signed-off-by: Peter Oskolkov <posk@google.com>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/inet_fragment.c | 44 | ||||
| -rw-r--r-- | net/ipv4/ip_fragment.c | 2 |
2 files changed, 13 insertions, 33 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 9f69411251d0..737808e27f8b 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -203,7 +203,6 @@ EXPORT_SYMBOL(inet_frag_rbtree_purge); void inet_frag_destroy(struct inet_frag_queue *q) { - struct sk_buff *fp; struct netns_frags *nf; unsigned int sum, sum_truesize = 0; struct inet_frags *f; @@ -212,20 +211,9 @@ void inet_frag_destroy(struct inet_frag_queue *q) WARN_ON(del_timer(&q->timer) != 0); /* Release all fragment data. */ - fp = q->fragments; nf = q->net; f = nf->f; - if (fp) { - do { - struct sk_buff *xp = fp->next; - - sum_truesize += fp->truesize; - kfree_skb(fp); - fp = xp; - } while (fp); - } else { - sum_truesize = inet_frag_rbtree_purge(&q->rb_fragments); - } + sum_truesize = inet_frag_rbtree_purge(&q->rb_fragments); sum = sum_truesize + f->qsize; call_rcu(&q->rcu, inet_frag_destroy_rcu); @@ -489,26 +477,20 @@ EXPORT_SYMBOL(inet_frag_reasm_finish); struct sk_buff *inet_frag_pull_head(struct inet_frag_queue *q) { - struct sk_buff *head; + struct sk_buff *head, *skb; - if (q->fragments) { - head = q->fragments; - q->fragments = head->next; - } else { - struct sk_buff *skb; + head = skb_rb_first(&q->rb_fragments); + if (!head) + return NULL; + skb = FRAG_CB(head)->next_frag; + if (skb) + rb_replace_node(&head->rbnode, &skb->rbnode, + &q->rb_fragments); + else + rb_erase(&head->rbnode, &q->rb_fragments); + memset(&head->rbnode, 0, sizeof(head->rbnode)); + barrier(); - head = skb_rb_first(&q->rb_fragments); - if (!head) - return NULL; - skb = FRAG_CB(head)->next_frag; - if (skb) - rb_replace_node(&head->rbnode, &skb->rbnode, - &q->rb_fragments); - else - rb_erase(&head->rbnode, &q->rb_fragments); - memset(&head->rbnode, 0, sizeof(head->rbnode)); - barrier(); - } if (head == q->fragments_tail) q->fragments_tail = NULL; diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 486ecb0aeb87..cf2b0a6a3337 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -261,7 +261,6 @@ static int ip_frag_reinit(struct ipq *qp) qp->q.flags = 0; qp->q.len = 0; qp->q.meat = 0; - qp->q.fragments = NULL; qp->q.rb_fragments = RB_ROOT; qp->q.fragments_tail = NULL; qp->q.last_run_head = NULL; @@ -451,7 +450,6 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb, ip_send_check(iph); __IP_INC_STATS(net, IPSTATS_MIB_REASMOKS); - qp->q.fragments = NULL; qp->q.rb_fragments = RB_ROOT; qp->q.fragments_tail = NULL; qp->q.last_run_head = NULL; |